asterisk users - Jan 2010 - Echo cancellation in a sip channel

Hello all,

I have a Linksys spa3102 with one FXS and one FXO port.

The problem is that I have a lot of echo when using the fxo port, the sound
is of very low quality.
 So, since I am  passing from a FXO port to a SIP channel I ask:

             is there any Sip echo canceler software for asterisk??

Thanks in advance.

Alex
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Problem solved. :)

I was adding to the pstn line a gain of 6 DB for both sides.
It has to be less than zero. After that the echo almost disappeared.



2010/1/21 Alexandre Rodrigues <alex454 at gmail.com>
> Hello all,
>
> I have a Linksys spa3102 with one FXS and one FXO port.
>
> The problem is that I have a lot of echo when using the fxo port, the sound
> is of very low quality.
>  So, since I am  passing from a FXO port to a SIP channel I ask:
>
>              is there any Sip echo canceler software for asterisk??
>
> Thanks in advance.
>
> Alex
>
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